# OSRAM ULTRA LIFE P21/5W 12 V 21/5 W signal lamp

- **Brand:** [OSRAM](https://autotools.ee/en/brands/osram)
- **Product code:** OSR7528ULT-2BL
- **EAN:** 4062172394895
- **Price:** ~~€3.90~~ €3.51 incl. VAT
- **Availability:** 5+ available · ready in Tallinn in 1–2 working days
- **Category:** [Spare parts](https://autotools.ee/en/c/car-parts) > [Car lighting](https://autotools.ee/en/c/car-lighting) > [Car bulbs](https://autotools.ee/en/c/car-bulbs) > [Indicator and brake light bulbs](https://autotools.ee/en/c/signal-brake-bulbs)
- **Link:** https://autotools.ee/en/products/osram-ultra-life-p21-5w-12-v-21-5-w-signaalpirn

## Description

OSRAM ULTRA LIFE P21/5W is a 12 V, 21/5 W signal lamp with a BAY15d lamp base. ULTRA LIFE lamps last up to four times longer than standard lamps: OSRAM rates them at up to 100,000 km, based on 14,259 km a year with the lights on 60% of the time. That makes them a good fit if you drive a lot. It is a dual-filament lamp, so paired values are given per filament (filament 1 / filament 2).

The ULTRA LIFE range covers most common auxiliary lamp types. OSRAM packs this lamp as 2 pcs in a blister or in a bulk pack.

**Technical data**

- **Application:** auxiliary lamp
- **Product code:** 7528ULT
- **ECE category:** P21/5W
- **Lamp base:** BAY15d
- **Nominal voltage:** 12 V
- **Test voltage:** 13.5 V
- **Nominal wattage:** 21/5 W
- **Power input:** 25 / 6 W (±6 / ±10%)
- **Nominal luminous flux:** 440/35 lm (±15 / ±20%)
- **Diameter:** 25.0 mm
- **Length:** 52.5 mm
- **Weight:** 10.50 g
- **Lifespan B3:** 300 / 3000 h
- **Lifespan Tc:** 800 / 6000 h
- **Technology:** AUX
- **Approval mark:** E1

## Specifications

| Attribute | Value |
| --- | --- |
| Bulb base | BAY15d |
| ECE category | P21/5W |
| Length | 52.5 mm |
| Power | 21 W |
| Road use | Liikluses lubatud |
| Technology | Halogeen |
| Voltage | 12 V |

## How it gets to you

- **I'll collect it, Tallinn:** Free · Usually ready in 1–2 working days
- **Parcel machine:** from €2.47 · free from €100.00 · Delivery in 1–3 business days
- **Courier:** from €6.82 · free from €100.00 · Delivery in 2–5 business days